The abstract factory design is used to a set of related instances without specifying the concrete classes — it uses the factory method design pattern to create instances of classes.

See the Java 101 Java interfaces tutorial for a more in-depth introduction to using interfaces in your Java programs, including where and where not to use default, static, and private methods.

We discuss some of the most common design patterns in Java and how they can help you solve common coding issues. Learn more. A design pattern is a well-established and documented solution to a ...